IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0754014
(2007-05-25)
|
등록번호 |
US-7726266
(2010-06-22)
|
우선권정보 |
FR-06 51925(2006-05-26) |
발명자
/ 주소 |
- Komurian, Richard
- Peuch, Julien
|
출원인 / 주소 |
- Mark IV Systemes Moteurs (SAS)
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
5 |
초록
▼
A cooling circuit comprises a cylinder block and a cylinder head block, these blocks each including cooling elements the form of integrated portions of circuit. The cooling circuit also includes at least a first, a second and a third separate external loops for external recirculation or reinjection
A cooling circuit comprises a cylinder block and a cylinder head block, these blocks each including cooling elements the form of integrated portions of circuit. The cooling circuit also includes at least a first, a second and a third separate external loops for external recirculation or reinjection mounted in parallel and looped on the integrated cooling elements. A circulating pump is connected fluidically to the integrated cooling element and to the three recirculation loops causing the fluid to circulate in the integrated cooling element and in the three recirculation loops. The at least three recirculation loops offer at least one common fluid node and are at least partially overlapping. A single actuator controls the flow of liquid circulating in the at least three recirculation loops.
대표청구항
▼
The invention claimed is: 1. A cooling circuit for an internal combustion engine including a cylinder block and a cylinder head block, these blocks each including integrated cooling means in a form of integrated portions of circuit, the cooling circuit also including, at least a first, a second and
The invention claimed is: 1. A cooling circuit for an internal combustion engine including a cylinder block and a cylinder head block, these blocks each including integrated cooling means in a form of integrated portions of circuit, the cooling circuit also including, at least a first, a second and a third separate recirculation loops for external recirculation or reinjection mounted in parallel and looped on said integrated cooling means and, a circulating pump connected fluidically to the integrated cooling means and to the three recirculation loops, causing a liquid to circulate in said integrated cooling means and in said three recirculation loops; wherein said at least three recirculation loops offer at least one common fluid node and wherein a single actuator controls the flow of liquid circulating in said at least three recirculation loops; wherein three regulating components are incorporated into a same structural unit to which are fluidically connected to form portions of said at least three recirculation loops, said structural unit also incorporating said at least one common fluid node, wherein a first regulating component of said three regulating components is placed between said at least one common fluid node and a first pipeline forming the first recirculation loop, a second regulating component of said three regulating components is placed between said at least one common fluid node and a second pipeline forming the second recirculation loop, a third regulating component of said three regulating components is placed between said at least one common fluid node and a third pipeline forming the third recirculation loop, and the first and second regulating components are also connected to each other by a portion of a fourth pipeline wherein the third regulating component is made in the form of a valve mounted so that it pivots around an axis perpendicular to a longitudinal axis of the third pipeline and said valve connected to an actuating shaft by a device for transmission and transformation of the rotating movement of said actuating shaft. 2. The cooling circuit according to claim 1, wherein the first loop incorporates the first regulating component regulating the flow of liquid circulating in the first loop, the second loop incorporates the second regulating component regulating the flow of liquid circulating in the second loop, the third loop incorporates the third regulating component regulating the flow of liquid circulating in the third loop, and the single actuator controls the three components regulating the flow of liquid circulating in said at least three recirculation loops. 3. The cooling circuit according to claim 1, wherein the first loop and the second loop incorporate a common component regulating the flow of liquid circulating in each of said first loop and second loop, the third loop incorporates a second component regulating the flow of liquid circulating in the third loop, and the single actuator controls the common component and the second component regulating the flow of liquid circulating in said at least three recirculation loops. 4. The cooling circuit according to claim 1, wherein regulation provided by the single actuator gives rise, to three distinct phases of associated regulation and circulation in said at least three recirculation loops, namely: a first phase in which a value of a flow rate of the liquid in the first loop is progressively increased from a nil value to a maximum value, and a flow rate of liquid in the second and third loops is nil, a second phase in which a value of a flow rate of liquid in the first loop is, and remains, maximum, a value of a flow rate of liquid in the second loop is increased progressively from a nil value to a maximum value and a flow rate of liquid in the third loop is nil, and a third phase in which a value of a flow rate of liquid in the first loop remains maximum, a value of the flow rate of liquid in the second loop is progressively decreased to a nil value and a value of the flow rate of liquid in the third loop goes progressively from a nil value to a maximum value, starts of the second and third phases corresponding respectively to a maximum value being reached, in the first circulation loop and in the second circulation loop, for the flow rate of the liquid. 5. The cooling circuit according to claim 2, wherein the single actuator controls rotation of an actuating shaft connected functionally or operationally to the three regulating components. 6. The cooling circuit according to claim 5, wherein the first and second regulating components are mounted directly on said actuating shaft and the third regulating component is actuated by an intermediate actuating means connected kinematically to said actuating shaft. 7. The cooling circuit according to claim 1, wherein at least one primary fan convector or a similar heat exchanger is mounted in series in the first recirculation loop, the second recirculation loop comprises a branch loop, and at least one secondary fan convector, different from the primary fan convector in the first loop, including a radiator, is mounted in series in the third recirculation loop. 8. The cooling circuit according to claim 1, wherein the first regulating component is made in the form of a portion of a cylindrical wall mounted firmly so that it rotates on the actuating shaft, in a hollow housing, said hollow housing forming a port taking liquid to the first pipeline, said portion of cylindrical wall being rotatably mounted transversely in said port, and its dimension being at least sufficient to block off the port in a closed position, and walls of the hollow housing located on either side of the actuating shaft, perpendicular to the longitudinal axis of the port, offering a recess receiving the portion of cylindrical wall in a retracted position in which said portion of cylindrical wall is located outside a section of passage of the port, so that the portion of cylindrical wall goes from a closed position to an open position during a first phase then remains in the open position during second and third phases, the open position corresponding to the retracted position. 9. The cooling circuit according to claim 1, wherein the second regulating component is made in the form of a portion of cylindrical wall mounted firmly so that it rotates on the actuating shaft, in a hollow housing, said hollow housing forming a port taking the liquid to the second pipeline, said portion of cylindrical wall being rotatably mounted transversely in said port, and its dimensions being at least sufficient to block off the port in a closed position, and walls of the hollow housing located on either side of the actuating shaft, perpendicular to the longitudinal axis of the port, offering a recess receiving the portion of cylindrical wall in a retracted position in which said portion of cylindrical wall is located outside a flow section of the port, so that the portion of cylindrical wall is in a closed position during a first phase then moves from this closed position to an open position during a second phase and returns to the closed position during a third phase, the open position corresponding to the retracted position. 10. The cooling circuit according to claim 1, wherein the device for transmission and transformation of the rotating movement of the actuating shaft comprises a cam mounted to rotate on the actuating shaft and made in the form of a portion of disk offering a running surface for a roller fixed so that it rotates on a first extremity of a rod forming a cam follower, the other end of which offers a receiving groove, perpendicular to a longitudinal axis of the third pipeline, to receive a first extremity of a bar, the other end of which is connected to a swivel pin of the valve, said rod being guided parallel to the longitudinal axis of the third pipeline in a corresponding groove made in a projecting part of the structural unit so that rotation of the cam causes movement of the roller along the running surface of said cam, movement of the rod parallel to the longitudinal axis of the third pipeline, movement of the first extremity of the bar in the receiving groove, perpendicular to the longitudinal axis of the third pipeline, and pivoting of the valve around its axis to open or close the passage of the pipeline. 11. The cooling circuit according to claim 10, further including a safety means directly influenced by a temperature of liquid circulating in the structural unit and forcing opening of the third component regulating the liquid circulating in the third recirculation loop. 12. The cooling circuit according to claim 11, wherein a compression spring forming safety means is composed of two metals. 13. The cooling circuit according to claim 1, wherein an intake of the recirculating pump is connected to outlets of the at least three recirculation loops, an outlet of said pump is connected to inlets of the at least three recirculation loops, and the common fluid node is located close to, and connected to, the outlets of the at least three recirculation loops.
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